Shake-head connection.



B. D. COPPAGE.

SHAKE HEAD CONNECTION.

APPLICATION FILED APR. 20. I915.

1,154,613. PatentedSept. 28, 1915.

"'rn sins r FFTQ' SHAKE-HEAD CONNECTION.

Specification of Letters Patent.

Patented Sept. 28, 1915.

Application filed April 20, 1915. Serial No. 22,616

T 0 all whom it may concern Be it known that I, BENJAMIN Dames Common, a resident of Wilmington, Delaware, (whose post-oflice address is care of The Pusey & Jones Company, WVilmington, Delaware,) have invented a new and useful Improvement in Shake-Head Connections, which invention is fully set forth in the following specification.

The present invention relates to papermaking machines, and particularly is an improved shake-head connection for the Fourdrinier part of such a machine.

lonsiderable difliculty has been experienced in practice with shake-head connections such as illustrated in U. S. Patent #1,11S,366, dated Nov. 24, 1914, due to the bending of the shake rod when the front end of the base-frame was elevated to incline the Fourdrinier wire. As shown in said patent, a curved bar mounted on the shake-frame passes through an eye in the end of the shake rod, this rod being reciprocated from an eccentric which usually makes about 250 revolutions per minute. The shake-frame weighs up to about seventeen tons and, when it was desired to elevate the front end of the base-frame, the operation of the machine would be stopped. Frequently the eccentric would stop in a position in which aconsiderable pull was being exercised on the curved bar on the shake-frame and, without slacking away to relieve the tension on the shake rod, the operator would proceed to elevate the seventeen ton shake-frame and the exceedingly heavy base-frame with the parts carried thereby. Under these conditions, the eye in the end of the shake rod would frequently bind and grip the curved bar carried by the shake-frame, and a bent shake rod would result.

With this difficulty in view, one of the objects of the present invention is to provide a connection that renders it unnecessary to stop the machine when it is desired to ele vate the front endof the base-frame, and which will prevent any binding or gripping between the shake rod and the curved bar on the shakeframe, thus avoiding any bending of said shake rod. The construction in this respect is, as it is colloquially expressed, fool-proof, inasmuch as it is immaterial what tension is on the shake rod when raising and lowering the base-frame; Another difficulty experienced with the shake-head connection of the patent is that it is comis to provide a connection that can only be.

adjusted to move the shake-frame in one direction; for example, to pull the shake frame and not push the same, to the end that all shock will be avoided.

The invention will be better understood by reference to the accompanying. drawings, illustrating one expression of the inventive idea, and wherein:

Figure 1 is a side elevation showing the manner in which the base-frame is pivoted and the connection between the shake-frame and the shake rod; Fig. 2 is a plan view partly in section, of a detail showing the connection bet een the curved bar carried by the shake-frame and the shake-rod; and Fig. 3 is an end elevation showing the improved connection.

Referring to the drawings, wherein like reference numerals indicate like parts, 5 is one of a pair of longitudinal side rails, forming part of the shake-frame, the outer ends of which are connected by a U-shaped frame 6, as in the patent above referred to. The shake-frame, of which the rails 5 are a part, is tiltable on the horizontal axis of bolts 7 carried by the housing 8, and'is also adapted to receive horizontal shaking movement. The base-frame is constituted by a pair of beams 9 (only one of which is shown) and said frame is pivotally supported on bolts 7 by upwardly-extending curved arms 10, one for each beam. The common axis of said bolts thus constitutes a single axis on which the rigid base-frame and also the shake-frame pivot in the tilting thereof to vary the inclination of the Fourdrinier part of the machine. The forward part of the shake-frame is preferably supported from the base-frame by two multiple-leaf fiat spring bars 11, one of which is shown. The lower end of each bar is preferably clamped between a block 12 and plate 13 by a bolt 14: passing through said block and plate and througl'i beam 9, rigidly securing said parts to said beam. A bolt 15 and plate 16 rigidly clamp the upper end of each spring bar to a flat face of an outward projection 17 on the upper end of each arm of U-shaped frame 6, beneath an overhanging shoulder 18 on said projection.

The mechanism herein illustrated is designed to provide for elevating the front end of the base-frame as much as from 16 to 18 inches or more above a horizontal position. The device as thus far described is that shown in the patent above referred to and is preferably, though not necessarily, the construction employed in connection with the mechanism hereinafter described for laterall'y vibrating the shake-frame.

Mounted on a standard 19 is a casting 20 which is held in place by suitable means, as bolts21. This casting constitutes a bearing for an elongated hair-pin shaped mem-. her or rod 22 which slides therein and engages around a curved bar 23 carried by lugs 24 and 25 on the U-shaped member 6 of the shake-frame. lhis hair-pin shaped member 22 is of substantial construction, and is preferably flat on its top and bottom. It is reciprocated in casting 20 in any suitable manner, as by an eccentric 26 rotated from any desired source of power, and suitable means are provided for varying the extent of lateral vibration of the shake frame. As here shown, a screw-threaded rod 27 is provided atone end with an eye through which proj ects a pin 28 the ends of which are carried in openings 29, one in each arm of member 22. A turn-buckle 30 engages the screwthreaded part of said rod 27 and also the screw-threads on one end of a second rod 31-, the-other end of which rod 31 is screwed into, or otherwise secured to, eccentric 26. Rod 27 is provided with a right-hand screwthreadand rod 31 with a left-hand screwthread, or vice versa so that, when the turn buckle 30 is rotated in one direction or the other the effective length of rods 27 and 31 is either increased or diminished. Lock nuts 32 and 33 hold the turn-buckle in its adjustedfposition and lock nut 31 maintains the connection between rod 31 and eccentric 26. The member 22 is guided in its reciprocations by vertical walls 35 and 36 of casting 20 andsaidmember is held in engagement with said walls and the bottom of the casting by flanges 37 and 38 (Fig. 1) that project over said member. The member 22 is moved endwise into casting 20, and oil cups 39 supply the necessary lubricant to the moving parts.

It will be observed that the connection from eccentric 26 acts only to pull the shakeframe and that the shake-frame must be returned by some other means. Preferably springs tO and 41, engage on either side of a downwardly-extending member 12 which is carried by the U-frame 6, and these springs act to return the shake-frame after it has been vibrated or pulled in one direction by eccentric 26 and the described connections. After the member 22 is adjusted into proper engagement with bar 23 said bar and member move as a unit and accordingly shock due to lost motion is avoided. Further, the open, bifurcated or slotted construction of member 22 prevents any binding therebetween and bar 23, and the substantial construction of said member-and the form of its bearing prevents bending of the same when the Fourdrinier part is raised or lowered, however great the pull on said bar23 may be. This bar 23 is arc-shaped and is struck on a curve the center of which is the axis of bolts'7. Accordingly undue strain on this bar is avoided when the base-frame and the shake-frame are moved about this same center. g 1

While for the purpose of illustration one embodiment of the inventive idea isherein illustrated and described in considerable detail, it is to be understood that the invention is not limited to the construction shown but that the inventive idea is susceptible of various'mechanical expressions within th limits of the appended claims.

What is claimed: is:

1. The combination in a paper-making machine, of a shake-frame; a bar carried thereby; means. for raising and lowering said'shake-frame; andmeans for vibrating said shake-frame including a bifurcated member that engages around said bar.

2, The combination in a paper-making machine, of a shake-frame; a bar carried thereby; means for raising and lowering said shake-frame; and-'means for vibrating said shake-frame including an open loop member that engages around said bar.

3. The combination in a paper-making machine, of a shake-frame; a bar carried thereby; means for raising and lowering said shake-frame; and means for vibrating said shake-frame including an elongated hook member that engages around said bar.

1. The combination in a paper-making machine, of a shake-frame; means for rais ing and lowering said shake-frame; a rotary member; connections between said member 1 machine, of a shake-frame; means for rais- I ing and lowering said. shake-frame; a rotary member; connections between'said member and shake-frame lncludlng an :enlongated hook member that engages around a part of said shake-frame and means for varying the effective length of said connections.

6. The combination in a paper-making machine, of a shake-frame; means for raising and lowering said shake-frame; a rotary member; connections between said member and shake-frame including an elongated hook member that engages around a part of said shake-frame; a bearing in which said hook member engages; and means for varying the effective length of said connections.

7. The combination in a paper-making machine, of a shake-frame; means for raising and lowering said shake-frame; a rotary member; connections between said member and shake-frame including an elongated hook member that engages around a part of said shake-frame and moves said shake-frame only in one direction; and means for moving said shake-frame in the opposite direction.

8. The combination in apaper-making machine, of a shake-frame; means for raising and lowering said shake-frame; a. rotary member; connections between said member and shake-frame including an elongated hook member that engages around a part of said shake-frame and moves said shake-frame only in one direction; and spring mechanism for moving said shakeframe in the opposite direction.

9. The combination in a paper-making machine, of a shake-frame; a curved bar carried thereby; and means for vibrating said shake-frame through said bar, said means including a hook member that engages around said bar; a rotary member; and connections between said rotary member and. said hook member.

10. The combination in a paper-making machine, of a shake-frame; a bar carried thereby; a rotary member; one-way connections between said bar and member whereby the latter operates to move said frame only in one direction; and means for moving said frame in the opposite direction.

11. The combination in a paper-making machine, of a shake-frame; a. bar carried thereby; a member having an elongated slot engaging around said bar; a bearing for said member projecting over the same; a rotary element; and adjustable connections between said member and element.

12. The combination in a paper-making machine, of a shake-frame; a bar carried thereby; and means for vibrating said shake-frame including a member having an elongated slot through which slot said bar passes.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

BENJAMIN DENVER COPPAGE.

Witnesses:

H. J. FEENEY, G120. E. SANDS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. O. 

